The answer to your question is D.
Slavery forbidden in the Northwest Territory. Slavery and involuntary servitude were forbidden in theNorthwest Territory, thereby making the Ohio River a natural dividing line between the free and slave states of the country. Unanimous consent from the states was required for the Northwest Ordinance to be passed.
Answer: brain communication pathways
Explanation: researched it
I would have to say, it was the beginning of a new era in naval warfare, not 100% positive though
We end our suffering by ending the fleshly wants of man.